C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Help with a Datamaster file

Old 03-28-2015, 09:51 AM
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MrWillys
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Default Help with a Datamaster file

Gentlemen: I'm trying to help another forum member over in Thailand, so I was wondering if any of you would review this datalog, and post up your observations?

http://www.scotthansen.net/test28.uni

I see 2 issues, but was hoping another pair of eyes may catch something I've missed.

Edit: 1990

Thanks Frankie!

Last edited by MrWillys; 03-28-2015 at 10:01 AM.
Old 03-28-2015, 09:55 AM
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FrankieD
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Can you verify what model year , and I assume it's a vette
Old 03-28-2015, 12:05 PM
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FrankieD
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DTC 22 - TPS Low
Vehicle speed is out of whack - indicates 255MPh at times
Oil Temp Reading is off
Flips from Closed Loop to Open Loop
At idle TPS% indicates 11.8%- which is too high

Last edited by FrankieD; 03-28-2015 at 12:10 PM.
Old 03-28-2015, 02:01 PM
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MrWillys
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Originally Posted by FrankieD
DTC 22 - TPS Low
This stuck out like a sore thumb with the big red DTC.
Vehicle speed is out of whack - indicates 255MPh at times
I'm guessing the trans is a 40 pulse, and this value can be reassigned.
Oil Temp Reading is off
This L98 is actually in a real pretty 52 Chevy truck, and I don't think he's running the oil sensors.
Flips from Closed Loop to Open Loop
I saw this too, and I'm thinking he must have the O2 in longtubes, and needs a heated one.
At idle TPS% indicates 11.8%- which is too high
Interesting, and I did not see this, and is why I posted this. Thanks!

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